Improvement in soldering-tools



L. Mc MURRAY & R. J. HOLL|NGSWORTH.

Improvement in Saldering-Toolsf No. 126,071. Patented April 23,1872,

WNW ;\mmm..mmmzzwmm UNITED STATES PATENT Grrron LOUIS MOMURRAY ANDROBERT J. HOLLINGSWORTH, OF BALTIMORE, MARY- LAND; SAID HOLLINGSWORTHASSIGNS HIS RIGHT TO FRANCIS CUT- TING, OF SAN FRANCISCO, CALIFORNIA.

IMPROVEMENT IN SOLDERING-TOOLS.

Specification forming part of Letters Patent No. 126,071, dated April23, 1872.

SPECIFICATION.

We, LOUIS MCMURRAY and ROBERT J. HOLLINGSWORTH, in the city and countyof Baltimore and State of Maryland, have invented certain Improvementsin Soldering- Tools, of which the following is a specification:

Our invention relates to a tool by which the closing or soldering up offruit or oyster cans is greatly facilitated and time and materialeconomized.

The accompanying drawing shows our soldering-tool in verticallongitudinal section, showing the position of the inner parts when thetool is getting heated.

A represents a soldering-block, made of bellshape, with a heavy rim, a,as heat-retainer. The soldering-surface is divided by an angular orhalf-round groove, a and thus forms two soldering-rims, a and a betweenwhich the groove a serves as a receptaclefor the melted solder, whichotherwise would be crowded vout of the crease around the cap of the canand adhere to the top of it. The upper part of the soldering-block A isas thin as the strength and safety of the tool will admit, and isprovided with openings a for the purpose of emitting heat and keepingthe said upper part cool with its contents. A hollow stem, B, isfastened to the upper part of the soldering-block A in the same axialdirection, and a wooden or other non-conducting handle, C, with an airor cooling chamber, 0, is attached to the other end of B. A rod, D, ispassed through R and C, with a handle, d, at the upper end, and aspring, d, between the handles 0 and d. The lower end of the rod D isattached to a metal cup, E, with arim, c, and a piece of soapstone orother non conducting substance, F.

The rim eis so constructed that it projects beyond the filling F, whichis provided with airholes f fto allow egress for the heated air whilesoldering is performed. The cup E is fitted into the block A, so it mayeasily slide up and down. There is no material change, thoughperceptible if the cup E is omitted and the substance F iastened to therod D.

The operation is as follows: The block A being heated, the rod D ispushed down until the cup E projects below the rim (0. The cup E is thenfirmly set on the cap G which is to be soldered, the rim e fittingtightly around the cap, thereby bringing the soldering-block E in aposition concentric with the cap. The soldering-block A is then moveddown into the crease on top of the solder, which, being melted, isreceived in' the groove a By pressing We wish it understood that we donot confine ourselves to any special kind of metals or alloys for theconstruction of the solderingblock A, and that we protect the said blockby a coating or plating of tin, nickel,- or silver, or any other metalapt to resistthe action of acids used in soldering. We also desire tohave it understood that we do not claim in this patent the side-draughtholes in the solderingblock; but

We claim as our invention- 1. The cap-pressing block of soap-stone orother equivalent non conductor of .heat, and provided with air holes orpassages.

2. The combination of a cap-pressing block with a spring-rod passingthrough the hollow stem and handle of the soldering-block,- for op-Witnesses:

J AM'ES FLYNN, WM. H. EMRI H.

